The only references to christianity in the lore are made on the timeline, where there is mention of the United Catholic Church at some point for the colonists sent to the Eve Gate and eventually ending up forming the Conformists, far, far ancestors of the Amarr.
But then again, there are literally thousand of years in between. The Amarr religion is the Amarr religion, and nothing else. It also borrows a lot of elements from actually non christian religions, like old persian faiths like zoroastrianism, etc. It's a mish mash of christian/roman/persian stuff with a divine emperor at the head (which hints definitely at Han/Ming dynasties as well as japanese).
So... Best rule of thumbs in eve, better to avoid direct parallels and references to RL facets imo.
( same for bushido btw, I would expect some khanid or deteis martial arts or code of conduct proving to be similar, as it is definitely believable, but the direct reference to RL implies that it's the same, and ruffle some feathers in the wrong way for me... )